<template>
	<i v-if="isShowIconSvg" class="el-icon">
		<component :is="getIconName" :style="setIconSvgStyle" />
	</i>
	<i v-else-if="isShowIconByte" class="el-icon">
		<component :is="getIconName" :style="setIconSvgStyle" />
	</i>
	<div v-else-if="isShowIconImg" :style="setIconImgOutStyle">
		<img :src="getIconName" :style="setIconSvgInsStyle" />
	</div>
	<el-image v-else-if="isExternal" :class="svgClass" :style="setIconSvgStyle" draggable="false" :src="getIconName"
		fit="fill" />

	<i v-else :class="getIconName" :style="setIconSvgStyle" />
	<!-- <svg v-else :class="svgClass" :style="setIconSvgStyle" aria-hidden="true">
		<use :href="symbolId" />
	</svg>
	<span :style="setIconSvgStyle" v-if="!!title">{{ title }}</span> -->
</template>

<script lang="ts">
import { computed, defineComponent } from 'vue';

export default defineComponent({
	name: 'svgIcon',
	props: {
		// svg 图标组件名字
		name: {
			type: String,
		},
		// svg 大小
		size: {
			type: Number,
			default: 16,
		},
		// svg 颜色
		color: {
			type: String,
		},
		title: {
			type: String,
			default: '',
		},
	},
	setup(props) {
		// 在线链接、本地引入地址前缀
		const linesString = ['https', 'http', '/src', '/assets', import.meta.env.VITE_PUBLIC_PATH];

		// 获取 icon 图标名称
		const getIconName = computed(() => {
			return props?.name;
		});
		// 用于判断 element plus 自带 svg 图标的显示、隐藏
		const isShowIconSvg = computed(() => {
			return props?.name?.startsWith('element');
		});
		// 用于判断在线链接、本地引入等图标显示、隐藏
		const isShowIconImg = computed(() => {
			return linesString.find((str) => props.name?.startsWith(str));
		});
		// 判断是否是byte dance图标
		const isShowIconByte = computed(() => {
			return props?.name?.startsWith('byte');
		});

		// 设置图标样式
		const setIconSvgStyle = computed(() => {
			return `font-size: ${props.size}px !important;color: ${props.color} !important;`;
		});
		// 设置图片样式
		const setIconImgOutStyle = computed(() => {
			return `width: ${props.size}px;height: ${props.size}px;display: inline-block;overflow: hidden;`;
		});
		// 设置图片样式
		// https://gitee.com/lyt-top/vue-next-admin/issues/I59ND0
		const setIconSvgInsStyle = computed(() => {
			const filterStyle: string[] = [];
			const compatibles: string[] = ['-webkit', '-ms', '-o', '-moz'];
			compatibles.forEach((j) => filterStyle.push(`${j}-filter: drop-shadow(${props.color} 30px 0);`));
			return `width: ${props.size}px;height: ${props.size}px;position: relative;left: -${props.size}px;${filterStyle.join('')}`;
		});
		const svgClass = computed(() => {
			if (props.className) {
				return `svg-icon ${props.className}`;
			}
			return 'svg-icon';
		});
		const external = (path: any) => {
			return /^(https?:|http?:)|\.(jpg|png|gif|svg|jpeg)$/.test(path);
		};

		const isExternal = computed(() => external(props.name));
		const symbolId = computed(() => `#${props.name}`);
		const title = computed(() => `${props.title}`);

		return {
			title,
			symbolId,
			isExternal,
			svgClass,
			getIconName,
			isShowIconSvg,
			isShowIconImg,
			isShowIconByte,
			setIconSvgStyle,
			setIconImgOutStyle,
			setIconSvgInsStyle,
		};
	},
});
</script>
